Question 1

Which of the following is considered a bidentate ligand?

Accepted Answer

A) Cyanide, CN − 
B) Thiocyanate, SCN − 
C) Oxalate, C 2O 4 2− 
D) Nitrite, NO 2 − 
E) Hydroxide, OH − 
A) Cyanide, CN − 
B) Thiocyanate, SCN − 
C) Oxalate, C 2O 4 2− 
D) Nitrite, NO 2 − 
E) Hydroxide, OH −

Question 2

A feature of transition metal chemistry is that these elements exhibit multiple oxidation states. Which one of the following elements exhibits the smallest number of different oxidation states?

Accepted Answer

A) Ti 
B) Cr 
C) Mn 
D) Co 
E) Zn 
A) Ti 
B) Cr 
C) Mn 
D) Co 
E) Zn

Question 3

In the presence of a strong octahedral ligand field, the number of unpaired electrons in Co(III) will be

Accepted Answer

A) 0. 
B) 2. 
C) 4. 
D) 6. 
E) None of these choices are correct. 
A) 0. 
B) 2. 
C) 4. 
D) 6. 
E) None of these choices are correct.

Question 4

Which of the following ions is least likely to form colored compounds?

Accepted Answer

A) Mn 2+ 
B) Cr 5+ 
C) Sc 3+ 
D) Fe 3+ 
E) Co 2+ 
A) Mn 2+ 
B) Cr 5+ 
C) Sc 3+ 
D) Fe 3+ 
E) Co 2+

Question 5

In the compound K[Co(C2O4)2(H2O)2] (where C2O42- = oxalate) the oxidation number and coordination number of cobalt are, respectively

Accepted Answer

A) −1 and 4. 
B) −1 and 6. 
C) 3 and 4. 
D) 3 and 6. 
E) 1 and 6. 
A) −1 and 4. 
B) −1 and 6. 
C) 3 and 4. 
D) 3 and 6. 
E) 1 and 6.

Question 6

Aluminum reacts with oxygen in the air to form a protective oxide coating. Silver also reacts with compounds in air to form a black coating. What substance is formed?

Accepted Answer

A) Silver oxide 
B) Silver chloride 
C) Silver sulfide 
D) Silver carbonate 
E) Silver nitride 
A) Silver oxide 
B) Silver chloride 
C) Silver sulfide 
D) Silver carbonate 
E) Silver nitride

Question 7

The compound K3[Fe(CN)6] is used in calico printing and wool dyeing. Give its systematic name.

Accepted Answer

A) Potassium iron(III)hexacyanate 
B) Tripotassium iron(III)hexacyanate 
C) Potassium hexacyanoferrate(III) 
D) Potassium hexacyanideferrate 
E) None of these choices are correct. 
A) Potassium iron(III)hexacyanate 
B) Tripotassium iron(III)hexacyanate 
C) Potassium hexacyanoferrate(III) 
D) Potassium hexacyanideferrate 
E) None of these choices are correct.

Question 8

Which of the following elements has the ground state electron configuration, [Xe]4f145d106s1?

Accepted Answer

A) Hg 
B) Ag 
C) Hf 
D) Au 
E) Th 
A) Hg 
B) Ag 
C) Hf 
D) Au 
E) Th

Question 9

Valence Bond theory rationalizes octahedral geometry by assuming a d2sp3 hybridization pattern.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following should be the strongest reducing agent?

Accepted Answer

A) Fe 
B) Ru 
C) Os 
D) Re 
E) Cu 
A) Fe 
B) Ru 
C) Os 
D) Re 
E) Cu

Question 11

What is the highest possible oxidation state for molybdenum, Mo?

Accepted Answer

A) +2 
B) +4 
C) +6 
D) +8 
E) None of these choices are correct. 
A) +2 
B) +4 
C) +6 
D) +8 
E) None of these choices are correct.

Question 12

A certain transition element has the stable oxidation states of +2, +3, +4, +5, and +6. In which state will the element be most likely to form an ionic bond with chlorine?

Accepted Answer

A) +2 
B) +3 
C) +4 
D) +5 
E) +6 
A) +2 
B) +3 
C) +4 
D) +5 
E) +6

Question 13

According to valence bond theory, what would be the set of hybrid orbitals used when a Period 4 transition metal forms a tetrahedral complex?

Accepted Answer

A) d 2 sp 
B) dsp 2 
C) dsp 3 
D) sp 3 
E) d 2 p 2 
A) d 2 sp 
B) dsp 2 
C) dsp 3 
D) sp 3 
E) d 2 p 2

Question 14

The most common oxidation state for ions of the inner transition elements is

Accepted Answer

A) +2. 
B) +3. 
C) +4. 
D) +5. 
E) +7. 
A) +2. 
B) +3. 
C) +4. 
D) +5. 
E) +7.

Question 15

The ground state electronic configuration of Cr2+ is

Accepted Answer

A) [Ar]4 s 13 d 5. 
B) [Ar]4 s 23 d 4. 
C) [Ar]3 d 4. 
D) [Ar]4 s 13 d 3. 
E) [Ar]4 s 23 d 2. 
A) [Ar]4 s 13 d 5. 
B) [Ar]4 s 23 d 4. 
C) [Ar]3 d 4. 
D) [Ar]4 s 13 d 3. 
E) [Ar]4 s 23 d 2.

Question 16

In the formation of a transition metal complex, the central metal atom or ion acts as

Accepted Answer

A) an Arrhenius acid. 
B) a Bronsted-Lowry acid. 
C) a Bronsted-Lowry base. 
D) a Lewis acid. 
E) a Lewis base. 
A) an Arrhenius acid. 
B) a Bronsted-Lowry acid. 
C) a Bronsted-Lowry base. 
D) a Lewis acid. 
E) a Lewis base.

Question 17

Give the systematic name for Cr(CO)3(NH3)3.

Accepted Answer

A) Chromiumtriaminotricarbonyl 
B) Triamminechromium carbonate 
C) Triamminetricarbonylchromate(0) 
D) Triamminetricarbonylchromium(0) 
E) None of these choices are correct. 
A) Chromiumtriaminotricarbonyl 
B) Triamminechromium carbonate 
C) Triamminetricarbonylchromate(0) 
D) Triamminetricarbonylchromium(0) 
E) None of these choices are correct.

Question 18

Write the formula for sodium tetracyanonickelate(II).

Accepted Answer

A) Na[Ni(CN)4] 
B) Na[Ni(CN)4] 2 
C) Na 2[Ni(CN)4] 
D) Na 4[Ni(CN)4] 
E) None of these choices are correct. 
A) Na[Ni(CN)4] 
B) Na[Ni(CN)4] 2 
C) Na 2[Ni(CN)4] 
D) Na 4[Ni(CN)4] 
E) None of these choices are correct.

Question 19

Which of the following will be diamagnetic?

Accepted Answer

A) Ni 2+ 
B) Cr 2+ 
C) Mn 2+ 
D) Co 3+ 
E) Ti 4+ 
A) Ni 2+ 
B) Cr 2+ 
C) Mn 2+ 
D) Co 3+ 
E) Ti 4+

Question 20

Square planar complexes can exhibit both geometric and optical isomerism.

Accepted Answer

A) True 
 B)False

Exam 23: Transition Elements and Their Coordination Compounds

Which of the following is considered a bidentate ligand?

A feature of transition metal chemistry is that these elements exhibit multiple oxidation states. Which one of the following elements exhibits the smallest number of different oxidation states?

In the presence of a strong octahedral ligand field, the number of unpaired electrons in Co(III) will be

Which of the following ions is least likely to form colored compounds?

In the compound K[Co(C2O4)2(H2O)2] (where C2O42- = oxalate) the oxidation number and coordination number of cobalt are, respectively

Aluminum reacts with oxygen in the air to form a protective oxide coating. Silver also reacts with compounds in air to form a black coating. What substance is formed?

The compound K3[Fe(CN)6] is used in calico printing and wool dyeing. Give its systematic name.

Which of the following elements has the ground state electron configuration, [Xe]4f145d106s1?

Valence Bond theory rationalizes octahedral geometry by assuming a d2sp3 hybridization pattern.

Which of the following should be the strongest reducing agent?

What is the highest possible oxidation state for molybdenum, Mo?

A certain transition element has the stable oxidation states of +2, +3, +4, +5, and +6. In which state will the element be most likely to form an ionic bond with chlorine?

According to valence bond theory, what would be the set of hybrid orbitals used when a Period 4 transition metal forms a tetrahedral complex?

The most common oxidation state for ions of the inner transition elements is

The ground state electronic configuration of Cr2+ is

In the formation of a transition metal complex, the central metal atom or ion acts as

Give the systematic name for Cr(CO)3(NH3)3.

Write the formula for sodium tetracyanonickelate(II).

Which of the following will be diamagnetic?

Square planar complexes can exhibit both geometric and optical isomerism.

Keys to the Study of Chemistry: Definitions, Units, and Problem Solving

The Components of Matter

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and Reaction Direction

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

Nuclear Reactions and Their Applications

Filters

In the compound K[Co(C₂O₄)₂(H₂O)₂] (where C₂O₄²^- = oxalate) the oxidation number and coordination number of cobalt are, respectively

The compound K₃[Fe(CN)₆] is used in calico printing and wool dyeing. Give its systematic name.

Which of the following elements has the ground state electron configuration, [Xe]4f¹⁴5d¹⁰6s¹?

Valence Bond theory rationalizes octahedral geometry by assuming a d²sp³ hybridization pattern.

The ground state electronic configuration of Cr²⁺ is

Give the systematic name for Cr(CO)₃(NH₃)₃.